So i have reproduced the bug, and you're right, using -O2 or compiling with gcc 4.6 resolves the problem.
As "official" gcc 4.7 support is only coming in mame 0.146 update 2, I am thinking of using the second option to resolve the bug on the package. @Berto: Upstream is however interested in sorting out this bug, so could you maybe submit your backtrace as asked in http://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=80250 ? -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org